Reinforcing-frame and cementitious construction.



v No. 883,768. PATENTED APR. 7, 1908.

v A. P. WHITE. REINFORGING FRAME AND GEMENTITIOUS CONSTRUCTION.

APPLICATION FILED SEPT. 27, 1906' 2 SHEETSSHEET l.

PATENTED APR. 7, 1908.

A. P. WHITE. REINFOROING FRAME AND OEMENTITIOUS CONSTRUCTION APPLICATIONI'ILED SEPT. 27, 1906 2 SHEETS-SHEET 2.

Invento W (7? M2:

W Atty:

UNITED STATES PATENT OFFICE.

vALEXANDER P. WHITE, OF CALDWELL, NEW JERSEY, ASSIGNOR TO THE GENERALFIRE- PROOFING COMPANY, OF YOUNGSTOWN, OHIO, A CORPORATION OF OHIO.

REINFORCING FBAME AND CEMENTITIOUS CONSTRUCTION.

Specification of Letters Patent.

Patented April 7, 1908.

Application filed September 27, 1906. Serial No. 336,435.

To'all whom it may concern:

Be it known that I, -ALEXANDER P. WHITE, a citizen of the United States,and resident of Caldwell, Essex county, New Jersey, have inventedcertain new and useful Improve- Inentsin Reinforcing-Frames andCementitious Constructions, of which the following is a specification,accompanied by drawings.

This invention relatesto reinforcingv frames suitable for embodiment inconcrete and other masonry constructions and tocementitiousconstructions, and the objects of the invention are to improve upon theconstructionof such reinforcing frames, render them more suitablyadapted to meet the special requirements of different constructions, andenable the parts of the frames to be readily and quickly assembled.

Another object of .the invention is to cheaPen the cost of manufacturewithout impairing the strength of the parts, and improve on cementitiousconstructions.

Further objects of the invention will hereinafter appear and to theseends the invention consists of a reinforcing frame substantially ashereinafter more fully described and claimed in this specification andshown in the accompanying drawings, in which,

Figure 1 is a side elevation of a portion of a reinforcing frameembodying the invention;

, Fig. 2 is a side elevation of a double form'of a continuous concretereinforcement; Fig.

7 is a partial plan view of Fig. 6.

Referring to the 'drawings, A represents a longitudinal base memberwhich may .be a metallic rod or bar of any suitable cross section, inthis instance a bar square in cross section bein shown by way ofillustration. Connecte to the base member A by means of slats or tiepieces B is another or upper longitudinal member C, shown extendin vsubstantially arallel to the base member in Fig. 1 in or er to'illustrate the invention. In order to connect the members A and C, slatsB of sheet-metal are provided, and according to this invention each slatis slit at the ends at D lon itudinally as shown the strips of metal att e sides of each slit being bent outwardly away from each other out ofthe-plane ofthe body portion of the strap to form eyes or apertures forthe reception of the main members of the frameand the members' A and Care passed through said eyes or apertures. The metal of the slats B isthen pressedoor otherwise formed tightly around the members A and C,thereby forming a rigid reinforcing frame.

The slats or tie pieces B may extend at i right angles transverselyacross. the members A and C, or else they may be arranged 'at. otherangles thereto as shown in Fig.1

and these tiepieces may all be parallel or not as desired.

In Fig. 1, the broad sides of the slats B are arranged outwardly, whilein Fig. 3 each slat is given a half turn about its longitudinal axis,thereby bringing the narrow edges of the slat outwardly. preferablytwisted tightly about the longitudinal members A and C, thereby clampingthe slat tightly to said members. In Fig. 4

each slat is twisted several times about its longitudinal axis, making avery firm and rigid construction and clamping the slats tightly to thelongitudinal members It is well known that the stresses in a concretebeam or girder follow certain lines.

Particularly the tensile strains, be inning at the top end of a girderor beam Wi 1 follow a line descending as it approaches the center ofthebeam or girder and then ascends as it approaches the opposite end. 'Itthus follows that the greatest tensile strain is at the.

bottom of the central or middle portion of the beam or girder. In Fig. 2a reinforcing frame is shown which is designed to withstand the strainsmet with in building construc- In this instance the base member A 9tions. is connectedto the u er members E and F by means of theslats butas shown the upper members E and F slant upwardly from the center andthe slats or tie pleces G neces sarily increase in len th from thecenter towards the ends of' t e reinforcing frame. The slats or tiepieces G in one side of the center may'all extend parallel to each otheras shown, or they may be arranged. in any other desired manner. Theseslats G may also be perfectly flat as shown, or else they miiy betwisted as in Figs. 3 and 4.

n Fig. 5 an end view ofa reinforcing truss is shown in which there arethree longitudinal members A and C connected by the slats The metal ofthe slat is placed end to end the central u shown a form of constructionembodying my invention adapted for girder and beam frames for concretereinforcement, so that a frame may be extended from one bay to theadjacent bay, making a continuous reinforcement. In the example shownthe construction com rises two airs of like frames or trusses, t eframes of each pair being placed in parallel relation to each other andcrossing the other pair midway of their length.

Each of the four frames may be described as formed of two frames shownlike that of Fig. 2, although they may .be like Fig. 1

er longitudinal members being integral. designates this central uppermember consisting of a middle depressed portion Iand descending ends K.1

L designates one of the outer upper members which slants downwardly fromits outer end as do the members E and F of Fig. 2.

M, M are the base bars or members, each of which extends under an end ofthe central upper member H and under theouter 11 per pression I membersL the inner ends of these two ase members .M are spaced apart from .eachother for a pur ose which will hereafter appear. All of t e up er andlower members are secured together by slats or tie frames G as alreadydescribed. Two of these reinforced frames are placed side by side andpreferably spaced apart from each other as shown in Fig. 7 of the drawins. Two other frames likethese, excepting that the depres sion I in thecentral upper members is omitted, are then placed across these, the deinone pair of the frames permitting the four frames to lie in the samehorizontal plane. A mass of concrete indicated at Oembeds the crossframes and completes the structure.

While I have shown the cross frames or trusses as arran ed in pairs itis obvious that the number of frames extending in each directionmmaynbevaried as the exigencies of the work require.

Obviously some features of this invention maybe used without others andthe invention may be embodied in widely varying forms, therefore,without limiting the invention to the devices shown and described, andwithout enumerating e uivalents, I claim and desire .to obtain byilLfollowing:-

1. A rigid reinforcing frame, (,omprisin main members and flatconnecting meta slats, the slats having near each end a slit, the metalon. each side'. of.the slirrheing pressed in op osite directions to forman e e through wh1c the main members pass, t e

walls of the eyes closely embracing the main members.

2-. A rigid reinforcing frame, comprising main members and twisted flatconnecting metal slats, the slatshaving near each .end .a slit, themetalflori each sideof the slit being pressed in opposite directions toform an e e through which the main members pass, t e' walls of the eyesclosely embracing the main members.

3. A rigid reinforcing frame, comprising a main base member, lonitudinal members, each extending at an angle to said base member, andflat connecting metal slats, the slats etters Patent the having neareach end a slit, the metal on each side of the slit being pressed inopposite directions to form an eye through which the main members pass,the walls ofthe eyes closely embracing the main members.

4. A rigid reinforcing frame, comprising two main members diverging fromeach other, and fiat connecting metal slats, the slats havin near eachend a slit, the metal on each side 0 the slit'being pressed in op ositedirections to form an eye through wh1c the main members pass, the Wallsof the eyes closely embracing the main members.

5. A rigid reinforcing frame, comprising two main embers diverging fromeach other, and ,t isted flat connecting metal slats, the slats havingnear each en a slit, the metal on each side of the slit being pressed inopposite directions to forman e which the main members pass, t e wallsof the eyes closely embracing the main mem- ALEXANDERP:WI IITE.

Witnesses OLIN A. FOSTER, A. L. OBRIEN.

e through

